Control of systems where the information between the controller, actuator, and sensor can be lost or delayed can be challenging with respect to stability and performance. One way to overcome the resulting problems is the use of prediction based compensation schemes. Instead of a single input, a sequence of (predicted) future controls is submitted and implemented at the actuator. If suitable, so...

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Recent studies have provided strong evidence that photoplethysmographic imaging (PPGi) techniques can serve for measuring the heart rate from video recordings. However, in the works on PPGi technology so far, motion artifacts, which limit the accuracy, were unavoidable. In this work, we present an exploration of our assumption that for a particular model of camera, there is an optimal measureme...

We consider the cosmology of a “3-brane universe” in a five dimensional (bulk) space-time with a cosmological constant. We show that Einstein’s equations admit a first integral, analogous to the first Friedmann equation, which governs the evolution of the metric in the brane, whatever the time evolution of the metric along the fifth dimension. We thus obtain the cosmological evolution in the br...

In this paper, fundamental limitations of the Control Grid Interpolation and Block Matching schemes for motion compensation are remedied by a novel idea which embodies positive features of both schemes. The enhanced scheme performs both consistently and signiicantly better than either method does individually.

MOTION COMPENSATION OF INTERFEROMETRIC SYNTHETIC

Motion Compensated Noise Reduction

Objectives To evaluate whether country of medical qualification is associated with “higher impact” decisions at different stages of the UK General Medical Council’s (GMC’s) “fitness to practise” process after allowing for other characteristics of doctors and inquiries. Design Retrospective cohort study. SettingMedical practice in the United Kingdom. Participants 7526 inquiries to the GMC concer...

Temporal interpolation has been recently proposed as a solution for increasing temporal resolution or even for predicting missing or corrupted frames within a video sequence. In this paper new techniques on temporal interpolation are presented, by mainly exploiting properties of the very popular and highly efficient zonal based motion estimation algorithms, and by introducing several other tech...